Magnetic and Non-Magnetic Materials

• Identify magnetic materials attracted by magnets.
• Differentiate magnetic and non-magnetic objects.
• Use simple test methods with bar magnet safely.
• Relate magnetic property to daily objects and applications.

Level 1 - Magnetic materials

Materials like iron, steel, nickel, and cobalt are attracted by magnets. Many everyday iron items respond clearly to a bar magnet.

Level 2 - Non-magnetic materials

Wood, plastic, rubber, paper, and most aluminum objects are not strongly attracted by ordinary magnets.

Level 3 - Testing method

Bring magnet near object without touching first. Strong pull indicates magnetic behavior. Keep magnets away from electronics and ATM cards.

Level 4 - Indian context

At home, fridge magnets stick because door has magnetic material under paint. In workshops, magnets collect iron nails from floors. During school craft activities, students can sort mixed objects into magnetic and non-magnetic trays quickly.

NCERT anchor: Looking Around 4, Ch 14 — Basva's Farm; Ch 23 — Pochampalli (tools, craft, and material choices)

Sorting box activity

Step 1 - Mix paper clips, chalk, coin, eraser, and safety pin.
Step 2 - Move magnet near each object.
Step 3 - Separate attracted and not attracted items.
Step 4 - Record in table.
Answer: Clips and safety pin are magnetic; chalk and eraser are not.

Fridge magnet reasoning

Step 1 - Test magnet on fridge door and plastic container.
Step 2 - Magnet sticks on door but not plastic.
Step 3 - Infer door has magnetic metal layer.
Step 4 - Conclude attraction depends on material type.
Answer: Magnet sticks only to magnetic materials.

• Name two magnetic materials.
• Is plastic ruler magnetic?
• Why do fridge magnets work?
• Can a magnet attract aluminum foil strongly?
• Stretch: Create a treasure-hunt activity where classmates find 10 magnetic objects in school (with permission).

Revision tip: Magnetic behavior is a material property, not a shape or color property.

Open the Practice tab for graded questions on Magnetic and Non-Magnetic Materials.